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Merck
CN

33015-M

甲酸

puriss. p.a., ACS reagent, reag. Ph. Eur., ≥98%

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线性分子式:
HCOOH
化学文摘社编号:
分子量:
46.03
UNSPSC Code:
12352106
NACRES:
NA.21
PubChem Substance ID:
EC Number:
200-579-1
Beilstein/REAXYS Number:
1209246
MDL number:
Assay:
≥98%
Form:
liquid
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InChI key

BDAGIHXWWSANSR-UHFFFAOYSA-N

InChI

1S/CH2O2/c2-1-3/h1H,(H,2,3)

SMILES string

OC=O

grade

ACS reagent, puriss. p.a.

agency

reag. Ph. Eur.

vapor density

1.6 (vs air)

vapor pressure

44.8 mmHg ( 20 °C)

assay

≥98%

form

liquid

autoignition temp.

1004 °F

expl. lim.

57 %

technique(s)

mass spectrometry (MS): suitable

impurities

≤0.001% ammonium (NH4), ≤0.001% non-volatile matter, ≤0.005% acetic acid (CH3COOH)

Quality Level

pH

2.2 (20 °C, 2.2 g/L)

bp

100-101 °C (lit.)

mp

8.2-8.4 °C (lit.)

density

1.22 g/mL at 25 °C (lit.)

anion traces

chloride (Cl-): ≤5 mg/kg, oxalate (C2O42-): ≤50 mg/kg, sulfate (SO42-): ≤5 mg/kg, sulfite (SO32-): ≤10 mg/kg

cation traces

Ag: ≤0.02 mg/kg, Al: ≤0.05 mg/kg, Ba: ≤0.05 mg/kg, Be: ≤0.02 mg/kg, Bi: ≤0.1 mg/kg, Ca: ≤0.2 mg/kg, Cd: ≤0.05 mg/kg, Co: ≤0.02 mg/kg, Cr: ≤0.05 mg/kg, Cu: ≤0.02 mg/kg, Fe: ≤2 mg/kg, Ge: ≤0.05 mg/kg, K: ≤0.1 mg/kg, Li: ≤0.02 mg/kg, Mg: ≤0.5 mg/kg, Mn: ≤0.05 mg/kg, Mo: ≤0.02 mg/kg, Na: ≤0.5 mg/kg, Ni: ≤0.05 mg/kg, Pb: ≤0.02 mg/kg, Sr: ≤0.02 mg/kg, Ti: ≤0.1 mg/kg, Tl: ≤0.05 mg/kg, V: ≤0.05 mg/kg, Zn: ≤0.05 mg/kg, Zr: ≤0.1 mg/kg

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General description

Formic acid is a simple organic acid. Formate group (-COOH) plays an important role to compose the complex biomolecules (acetic acid, glycine, various amino acids). It exhibits high polarity and its dipole moment is 1.41Debye. It has been reported as a substiute for fuel in polymer electrolyte membrane (PEM) fuel cells. Its permeation through Nafion 112 and 117 membranes has been compared with that of methanol.

Application

Formic acid has been used to evaluate its first absolute differential elastic electron scattering cross-sections and angular differential cross-sections (incident electron energies in the range of 1.8 and 50eV). It may be used in the preparation of HPLC buffer for mass spectrometric studies.

Legal Information

Nafion is a trademark of The Chemours Company FC, LLC

signalword

Danger

Hazard Classifications

Acute Tox. 3 Inhalation - Acute Tox. 4 Oral - Eye Dam. 1 - Flam. Liq. 3 - Skin Corr. 1A

supp_hazards

存储类别

3 - Flammable liquids

wgk

WGK 1

flash_point_f

121.1 °F - closed cup

flash_point_c

49.5 °C - closed cup

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